Mirror Sizes: Standard Dimensions and How Big a Mirror Should Be
Standard mirror sizes for bathrooms, bedrooms, entryways and living rooms, with the rules that decide how wide and how tall a mirror should be and how high to hang it.
Standard bathroom mirrors measure 24 × 30 in (61 × 76 cm) to 30 × 36 in (76 × 91 cm), sized a few inches narrower than the vanity. Full-length mirrors are 12-30 in (30-76 cm) wide and 48-70 in (122-178 cm) tall; to see your whole body, a mirror must be at least half your height. Wall mirrors over furniture are usually about two-thirds of the furniture's width.
- Bathroom
- 24 × 30 to 30 × 36 in
- Over-door
- about 14 × 50 in
- Full-length rule
- half your height
- 1/4 in glass
- 3.25 lb/sq ft
On this page
Standard mirror sizes by type
Mirrors are not made to a formal standard, but retailers stock the same sizes again and again. Sizes are width × height.
| Mirror type | Inches | Centimeters | Typical place |
|---|---|---|---|
| Medicine cabinet (recessed) | 15 × 26 to 20 × 26 | 38 × 66 to 51 × 66 | Fits a 14 × 24 in opening between studs |
| Vanity mirror | 24 × 30, 24 × 36, 30 × 36 | 61 × 76, 61 × 91, 76 × 91 | Over a single sink |
| Double-vanity mirror | 48 × 36 to 66 × 40 | 122 × 91 to 168 × 102 | Over 60-72 in vanities |
| Round wall mirror | 24, 30 or 36 diameter | 61, 76 or 91 diameter | Vanities, entryways, accent walls |
| Over-the-door | 12 × 48 to 14 × 50 | 30 × 122 to 36 × 127 | Bedroom and closet doors |
| Wall full-length | 16 × 60 to 22 × 65 | 41 × 152 to 56 × 165 | Bedrooms, dressing areas |
| Floor leaner | 24 × 65 to 30 × 70 | 61 × 165 to 76 × 178 | Leaned against a wall |
| Entry / accent | 24 × 36, 30 × 40, 36 × 48 | 61 × 91, 76 × 102, 91 × 122 | Over consoles, dressers, sofas |
Bathroom mirror size and height
A vanity mirror should be narrower than the vanity, not wider, or it looks like it is sliding off the counter. A few inches in from each side is the usual look.
| Vanity | Mirror width | Typical mirror |
|---|---|---|
| 24 in (61 cm) | 18-22 in (46-56 cm) | 20 × 30 in or 22 in round |
| 30 in (76 cm) | 24-28 in (61-71 cm) | 24 × 30 or 24 × 36 in |
| 36 in (91 cm) | 30-34 in (76-86 cm) | 30 × 36 in or 30 in round |
| 48 in (122 cm) | 36-44 in (91-112 cm) | 36 × 36 or 40 × 30 in |
| 60 in (152 cm) double | 48-56 in, or two of 22-24 in | 48 × 36 in or 2 × 22 × 30 in |
| 72 in (183 cm) double | 60-66 in, or two of 24-28 in | 60 × 36 in or 2 × 24 × 32 in |
- Bottom edge: 5-10 in (13-25 cm) above the counter or backsplash, high enough to clear a faucet.
- Top edge: above the head of the tallest regular user, typically 70-80 in (178-203 cm) from the floor.
- Lights: leave 3-4 in (8-10 cm) between the mirror and side sconces, and room above for a vanity light bar.
Under the 2010 ADA Standards (603.3), a mirror over a lavatory or countertop must have the bottom edge of its reflecting surface no more than 40 in (102 cm) above the floor. A mirror elsewhere in the room must start no higher than 35 in (89 cm).
Vanity widths and heights are listed in the bathroom vanity size guide.
Full-length mirror size: the half-height rule
A flat mirror shows your full reflection at half scale on the glass, whatever your distance from it. So a mirror needs to be half your height to show you head to toe, as long as its top edge sits halfway between your eyes and the top of your head.
| Your height | Minimum mirror height |
|---|---|
| 5 ft 0 in (152 cm) | 30 in (76 cm) |
| 5 ft 6 in (168 cm) | 33 in (84 cm) |
| 6 ft 0 in (183 cm) | 36 in (91 cm) |
| 6 ft 4 in (193 cm) | 38 in (97 cm) |
In practice, buy taller. Several people with different heights use the same mirror, and a 48-65 in mirror lets everyone see themselves without adjusting the hanging height. Width matters for outfits: 14-16 in shows one person's silhouette, 22-30 in shows a full outfit with arms out.
Mirrors over furniture and in living spaces
- Over a sofa: about two-thirds of the sofa width. Over an 84 in (213 cm) sofa, that is a mirror about 56 in (142 cm) wide. Hang the bottom edge 8-10 in (20-25 cm) above the sofa back. Sofa widths are in the sofa size guide.
- Over a dresser or console: two-thirds to three-quarters of the furniture width, bottom edge 6-10 in (15-25 cm) above the top. Over a 60 in dresser, a mirror 40-45 in wide. See dresser dimensions.
- Over a mantel: no wider than the mantel shelf, bottom edge 4-8 in (10-20 cm) above it.
- On an empty wall: center the mirror at 57-60 in (145-152 cm) from the floor, the same height galleries use for art. For groupings with frames, see the wall art size guide and picture frame sizes.
- Home gym: wall mirror panels of 36 × 72 in or 48 × 72 in (91 × 183 or 122 × 183 cm) mounted with the bottom 12-18 in off the floor show full movements.
Mirror thickness and weight
Most mirrors are 1/8 in (3 mm) or 1/4 in (6 mm) glass; 4-6 mm is usual in metric markets. Weight comes from the glass area and thickness, so it is easy to estimate before you choose wall anchors.
| Thickness | Weight per area | 24 × 36 in mirror | 30 × 70 in mirror |
|---|---|---|---|
| 1/8 in (3.2 mm) | 1.6 lb/sq ft (7.9 kg/m²) | 9.8 lb (4.4 kg) | 24 lb (10.8 kg) |
| 1/4 in (6.4 mm) | 3.25 lb/sq ft (15.9 kg/m²) | 19.5 lb (8.8 kg) | 47 lb (21.5 kg) |
A wood or metal frame adds to these weights, sometimes by as much as the glass itself. A mirror over about 20 lb (9 kg) should hang from a stud or rated heavy-duty anchors, using two points so it cannot swing. Leaning mirrors over 50 in tall need an anti-tip strap, especially where children play.
How to measure for a mirror
- Measure the wall or furniture width and multiply by about 2/3 for a decorative mirror, or subtract a few inches for a vanity mirror.
- Set the vertical limits: the furniture top, faucet, light fixtures, switches and outlets below and above.
- Mark the outline with painter's tape and look at it from where you usually stand or sit. Check what the mirror will reflect from that spot: a window brings in light, a cluttered corner doubles it.
- For framed mirrors, use the outer size, not the glass size, to check fit. Framed sizes can be 2-6 in larger than the glass.
Pair a mirror with lighting from the side for the most even light on the face; lamp heights and shade sizes are in the lamp size guide.
Frequently asked questions
What is the standard size of a mirror over a bathroom sink?
24 × 30 in (61 × 76 cm) over a 24-30 in vanity and 30 × 36 in (76 × 91 cm) over a 36 in vanity are the common sizes. Keep the mirror a few inches narrower than the vanity and 30-40 in (76-102 cm) tall. Round mirrors of 24-30 in diameter suit 30-36 in vanities.
How big should a mirror above a toilet be?
Match the mirror roughly to the toilet tank or slightly wider: about 18-24 in (46-61 cm) wide. Hang it so the bottom edge is about 10-12 in (25-30 cm) above the tank lid, so the lid can be lifted and the mirror is not hit when the toilet is serviced.
How tall should a full-length mirror be?
At least half your height. A 5 ft 4 in (163 cm) person needs a 32 in (81 cm) tall mirror and a 6 ft (183 cm) person needs 36 in (91 cm), provided it is hung with its top just above eye level. Standard full-length mirrors of 48-65 in are taller so they work for everyone in the house and at any hanging height.
What size mirror goes over a 72 inch double vanity?
Either one mirror about 60-66 in (152-168 cm) wide and 30-40 in tall, or two mirrors of about 24 × 32 in (61 × 81 cm) each, centered on the sinks. Two mirrors leave space between them for a wall light or a medicine cabinet.
How much does a mirror weigh?
Glass weighs about 1.6 lb per square foot at 1/8 in thick and 3.25 lb per square foot at 1/4 in (about 8 and 16 kg per square meter). A 24 × 36 in mirror in 1/4 in glass weighs about 20 lb (9 kg) before the frame.